There are so many professions it's hard to keep pace...
"It's been a long long time time, since I've got you on my mind... It's ok, just me and you... Now you walk here, and I said it's ok, to see what we could do..." (Stir it up, Bob Marley)
Miyamoto Musashi certainly had an advanced view of the world, as his principles still apply even today. Not only to Japanese martial arts, but it also has merit in today's business world and even in games like L2.
When in a duel, you must forestall the enemy and attack when you have first recognised his school of strategy, perceived his quality and his strong and weak points. Attack in an unsuspected manner, knowing his metre and modulation and the appropriate timing.